Stackable stool



FIG. 1 is a perspective view of a stackable stool constructed in accordance with the invention;

FIG. 2 is a front elevation view of the stackable stool shown in FIG. 1;

FIG. 3 is a top elevation view of the stackable stool shown in FIG. 1;

FIG. 4 is a side elevation view of the stackable stool shown in FIG. 1;

FIG. 5 is a rear elevation view of the stackable stool shown in FIG. 1; and,

FIG. 6 is a bottom elevation view of the stackable stool shown in FIG. 1. 

The ornamental design for a stackable stool, as shown and described. 